I really like the vibe you went for!! I do have a couple issues with the final track, but I will say that the general idea and feeling for it are VERY fun so I think most issues I have would be pretty fast and easy to fix. The mixing on that track was a bit off, as well as some of the instrumentation. Maybe something more to pair with the bass would work, I'm not sure. You also had two chords at the end of the phrases that really don't work very well. I think 7th chords could be good substitutions so you get that level of tension that you probably wanted without the dissonance being so high. Also, I do feel like the second song didn't super fit the vibe of a platformer; I think it needed a bit more energy. But great starting points for sure and, again, you definitely found a cool vibe, so full credit there!